551600 has 60 divisors (see below), whose sum is σ = 1522224. Its totient is φ = 188160.

The previous prime is 551597. The next prime is 551651. The reversal of 551600 is 6155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2702 + ... + 2898.

2⁵⁵¹⁶⁰⁰ is an apocalyptic number.

551600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761112).

551600 is an abundant number, since it is smaller than the sum of its proper divisors (970624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551600 is a wasteful number, since it uses less digits than its factorization.

551600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 551600 is about 742.6977851051. The cubic root of 551600 is about 82.0114994779.

Adding to 551600 its reverse (6155), we get a palindrome (557755).

The spelling of 551600 in words is "five hundred fifty-one thousand, six hundred".